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| Xu,B.L.; Zhao,Q.Z.; Gao,X.Y.; Hou,G.J.. |
| Sex hormones from environmental and physiological sources might play a major role in the pathogenesis of hepatoblastoma in children. This study investigated the effects of estradiol and bisphenol A on the proliferation and telomerase activity of human hepatoblastoma HepG2 cells. The cells were divided into 6 treatment groups: control, bisphenol A, estradiol, anti-estrogen ICI 182,780 (hereinafter ICI), bisphenol A+ICI, and estradiol+ICI. Cell proliferation was measured based on average absorbance using the Cell Counting-8 assay. The cell cycle distribution and apoptotic index were determined by flow cytometry. Telomerase activity was detected by polymerase chain reaction and a telomeric repeat amplification protocol assay. A higher cell density was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Estradiol; Bisphenol A; HepG2; Telomerase activity. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015001101004 |
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| Parra,E.R.; Pincelli,M.S.; Teodoro,W.R.; Velosa,A.P.P.; Martins,V.; Rangel,M.P.; Barbas-Filho,J.V.; Capelozzi,V.L.. |
| Limitations on tissue proliferation capacity determined by telomerase/apoptosis balance have been implicated in pathogenesis of idiopathic pulmonary fibrosis. In addition, collagen V shows promise as an inductor of apoptosis. We evaluated the quantitative relationship between the telomerase/apoptosis index, collagen V synthesis, and epithelial/fibroblast replication in mice exposed to butylated hydroxytoluene (BHT) at high oxygen concentration. Two groups of mice were analyzed: 20 mice received BHT, and 10 control mice received corn oil. Telomerase expression, apoptosis, collagen I, III, and V fibers, and hydroxyproline were evaluated by immunohistochemistry, in situ detection of apoptosis, electron microscopy, immunofluorescence, and histomorphometry.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: BHT experimental model; Usual interstitial pneumonia; Alveolar epithelial cell apoptosis; Telomerase activity; Collagen V; Electron microscopy. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014000700567 |
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